Cookstove oven and door therefor



June 27, 1950 H. M. REEVES COOKSTOVE OVEN AND DOOR THEREFOR Filqd lay a, 1946 I Nvanvron- I q-levbert Qeeves Patented June 21, 1950 COOKSTOVE OVEN AND DOOR THEREFOR Herbert M. Reeves, Kankakee, Ill., asslgnor to 'Florence Stove Company, Gardner, corporation oi Massachusetts Masa, a

Application May 6, 1946, Serial No. 867,529

2 Claims. (Cl. 126-200) The invention relates to cookstoves and has more particular reference to an oven door structure for such stoves.

It has been the common practice to provide glazed window openings for cookstove baking ovens. To reduce heat loss through the door, the latter are made of substantial thickness with a heavy layer of insulating material between the outer and inner panels of the door. Usually the inner panel is made in the form of a liner specially shaped so that the central portion of the door is of increased thickness so to fit into the opening deflned by the door frame. In equipping doors of this character with window openings, it is desirable to minimize heat loss through the use of double glazing. Moreover, it is important that the size of the window be kept to a minimum.

The object of the present invention is to provide a double glazed window opening for heavily insulated oven doors, which permits the opening to be made of relatively small size so as to minimize the heat loss through the glazed opening but without decreasing the range of vision through the window opening.

The object of the invention thus generally set forth, together with other and ancillary advantages, is attained by the construction and arrangement shown by way of illustration in the accompanying drawings, in which:

Figure 1 is a fragmentary perspective view of a cookstove embodying a baking oven equipped with an oven door constructed in accordance with my invention.

2 is a. fragmentary front elevational view of the oven with the door in closed position.

Fig. 3 is a fragmentary vertical sectional view on an enlarged scale taken approximately in the plane of line 3-3 of Fig. 2.

Fig. 4 is a fragmentary horizontal sectional view taken approximately in the plane of line 4-4 of Fig. 2.

I have herein shown for purposes of illustration a gaseous fuel cookstove havin an oven section 1 disposed at one side of a cooking top 8. Within the oven section I is a baking oven 0 having a door opening l0 defined by a frame The opening III is normally closed by a door l2 constructed to provide in its upper central portion a. double'glazed window It.

The door comprises a sheet metal insulated body having an outer or face panel I4 and an inner panel or liner I5 spaced a substantial distance apart to form a hollow interior filled with suitable insulation it. The peripheral edges of the face panel are formed by rearwardly turned flanges II receiving in interfitting relation outturned flanges I! on the liner. To increase the thickness of the door and thereby reduce heat loss therethrough, the liner is shaped to form a central portion l9 which projects intothe oven through the door opening ID, the marginal edge of the liner being ofiset outwardly to provide seating surfaces for engagement with the front face of the door frame The Mndow opening I3 is located in the upper central portion of the door and in accordance with the present invention is formed by openings 20 and 2| in the outer face panel l4 and the liner I5 respectively, relatively proportioned and arranged so as to permit of a substantial reduction in the size of the opening 20 in the outer face panel and at the same time enlarge the-efiective range of vision through the window opening. For this purpose. the lower edges of the openings 20 and 2| are relatively ofiset with the lower edge of the inner opening 2| disposed downwardly with respect to the corresponding edge of the opening 20.

The outer opening 20 is closed by an outer glass plate 22 with its edge portions bearing upon an inturned name 23 defining the opening 20. Similarly, the inner opening 2| is closed by an inner glass plate 2! bearing against an out- 'wardly turned flange 25 defining the opening 2|. The two glass window plates are supported in spaced relation and held against their respective flanges 23 and 25 by an intervening spacing member 26 having a. central portion 21 in the storm of an outwardly opening channel and bent edge portions 23a forming shouldered seats for receiving the edge portions of the plates 22 and 24 and retaining such plates in spaced relation against the edges of the panel flanges 23 and 25.

In view of the downwardly offset relation of the inner window opening 2| with respect t; the outer window opening 20, the central portion 21 of the spacing member 26 at the bottom of the window opening is inclined sharply downwardly and inwardly so as to define a, line of vision inclined downwardly and inwardly through the window opening. Such line of vision is indicated in Fig. 3 of the drawing by the line a.

Referring now to Figs. l2 and 4 of the drawings, the opposite side edges of the inner window opening 2| are also preferably offset relative to the corresponding edges of the outer window opening ,2l, and the central portions 21 of the spacer 26 are inclined laterally and inwardly at a relatively sharp angle. Thus the lateral range of vision glass plate 24 so that the flange engages with the glass plate 24 only at the top and bottom edges of the plate as shown in Fig. 3. Also, the upper edge of the plate 24 terminates short of the inner portion 28 of the spacing member so as to provide a space permitting vertical movement of the inner plate 24 a, distance sufficient to clear the lower edge of the plate from the flange 25, thereby permitting removal of the inner plate as is frequently desirable for purposes of cleaning the same.

It will be seen that by relatively proportioning and arranging the two openings 20 and 2| in the manner set forth, it is possible to minimize the dimensions of the outer plate 22 and at the same time increase the effective range of vision through the window opening and this notwithstanding the fact that the door is made of substantial thickness so as further to minimize loss of heat through the door opening. Also, it will be seen that the marginal edges of the space between the two glass plates is closed by the spacing member 26 in such a way as to present a neat and attractive appearance.

I claim as my invention:

1. In a cookstove having a baking oven with a front frame defining a door opening, a door closing said opening having a front panel with a rectangular window opening in its upper central portion and an inner face panel having a window opening with its side and bottom edges respectively offset laterally and downwardly with respect to the corresponding side and bottom edges of the opening in the front panel, a pair of glass window plates closing the respective openings in the panels, and means supporting said plates in substantially uniformly spaced relation and in respective planes substantially parallel to the medial plane of said door, said supporting means comprising a spacing member having a bottom edge portion inclined downwardly and inwardly and side edge portions inclined laterally and inwardly to enlarge the range of vision through said plates, the upper edge of the opening in the front panel being disposed adjacent the upper edge of the door and the lower edge of said opening being disposed substantially centrally of the door. a

2. In a cookstove having a baking oven with a front frame defining a door opening, a door closing said opening having a front panel with a rectangular window opening in its upper central portion and an inner face panel having a window opening with its lower edge offset laterally and downwardly with respect to the lower edge of the opening in the front panel, a pair of glass window plates closing the respective openings in the panels, and means supporting said plates in substantially uniformly spaced relation and in respective planes substantially parallel to the medial plane of said door, said supporting means comprising a spacing member having a bottom edge portion inclined downwardly and inwardly to enlarge the range of vision through said plates, the upper edge of the opening in the front panel being disposed adjacent the upper edge of the door and the lower edge of said opening being disposed substantially centrally of the door.

HERBERT M. REEVES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 989,440 Stutz Apr. 11, 1911 1,852,253 Metz May 4, 1932 2,074,436 Seeger Mar. 23, 1937 2,226,254 Owen Dec. 24, 1940 2,229,594 Seiler Jan. 21, 1941 2;319,004 Lotter May 11, 1943 2,394,176 Hillebrand Feb. 5, 1946 2,438,270 Cotes Mar. '23, 1948 

